Ergonomic DesignUnique ergonomic design of this 3D cloud-shaped Waist Pillow meets the requirement of good lumbar spine curvature. This 3D air mesh lumbar pillow with resilient filling contours to your body curve without deformation, perfect for side, back or stomach sleepers. Giving pretty good lower back support and reduces driving or working fatigue for the spine. High-quality Materialslumbar support cushion is made with 100% high quality and comfortable memory foam, not only providing a great comfort for lower back but also a very hygienic and durable, no chemical odor or odor. and never going flat. It does not flatten over time and provides optimal support and spinal alignment. (Size: 49 x 27cm x 13.5cm). Multiple UsesVery suitable for families, wheelchairs, office seats, bed, car seats and airplane seats, Suitable for any kind of seat. Ensuring to meet the ergonomics of the human neck and waist, reduce strained back muscles and ligaments in supine, side, and stomach sleeping positions, also can be placed in the calf or between the knees as leg spacer. Removable & Washable CoverThe breathable and soft lining cover offers ultimate comfort and prevents the wedge-shaped pillow from overheating, and washable cover which allows airflow through the cushion to keep your back cool and dry for the best experience, even after long periods of use. Relief the PainOur lumbar pillow cushion your back's curve to achieve perfect spinal alignment and promote a healthy posture. The ergonomic design is adopted to fill the gap between the waist and the bed, fit the curve of the lumbar spine, and effectively relieve the pain caused by the waist, thereby reducing the burden on the back especially for those who often turns over or cannot fall asleep unless lying on their side.